Handy lamp.



R. n. ROOT.

HANDY LAMP.

APPLICATION FILED MAY 4. 1914.

I Patented June 4, 1918.

I as will usually be RALPH B. ROOT,'OF-OLEV EI1AND, OHIO.

Patented June d, 191%..

I Application filed may 4, 1914. Serial No. 836,045.

lamp carrying portion so manipulated as to HANDY 1,268,154,Specification of Letters Patent.

To all whom it mag concern:

Be it known t at 1, RARE R. Roor, a

citizen of the United States residing at Cleveland, in the county ofduyahoga and State of Ohio, have invented a certain new and usefulImprovement in Handy Lamps of which the following is a full, clear, anexact description.

This invention relates to what may be termed a handy lamp. That is tosay, it isso constructed that it may be affixed in any position upon ametal surface and supported due to magnetic attraction.

The object of the invention is to provide such a lamp as beforedesignated, which will be of strong construction and so constructed asto permit the turning of the light in any direction. The object of 'theinvention is furthermore to provide a lamp made up largely of stampingswhich will insure a low cost of production.

Generally speaking, the invention comprises the elements andcombinations thereof set forth in the accompanyin claims. as Referenceshould be had to t e accompanying drawings forming a part of thisspecification, in which Figure 1 represents a side elevation with partsin section of the device. Fig. 2 is a front elevation with parts insection of the device; and Fig. 3 is a side elevation with certainportions removed, showing the adjustment of the lamp carrying portion.

The lamp comprising this invention is adapted to be energized by acurrent from the battery which is usually carried on automobiles, aportion of the lamp forming an' electro-magnet so that the portion thusforming an'electro-magnet may be caused to adhere to any part of a metalstructure against which it may be placed. Because of this fact, it willbe apparent that there will be "a large number of places about anautomobile, where this lamp may be placed, and it possible to find someposition in which it may be advantageously placed to give the maximumlighting eifect on the part being examined.

However, inasmuch as the lamp carrying portion is adjustable upon thebase which forms the electro-magnet part, the lamp has a greater rangeof usefulness, and the lamp, when once placed upon an iron or steel partof the machine, does not necessarily have to to be removed, for it maybe so twisted and the accom lish the desired result.

In e drawing at 1 there is a cup shaped member, within which arewindings2, surrounding a central core 3,--these elements formlng anelectro-magnet. The windings 2 are protected by means of a cover 4 whichis tightly fitted within the cup 1, this cover surrounding theelectro-magnet 3. When the windin s 2 are energized by a direct currentan the base is placed against an iron or steel support, theelectro-magnetic circuit willbe completed, and the cup 1 and core 3 willbe tightly held against the steel or iron object in a manner which iswell known.

Upon the top of the side portion of the cup is a U-shaped strap 5. Thisstrap is secured to the cover 1, and between the upwardly extendingportions of the strap there extends a transverse shaft 6, which at itsends is secured in the strap 5. The shaft 6 may be made of insulatingmaterialor other means taken to accomplish the result, the object soughtbeing to insulate the contact members 7 and 8 from each other and fromthe base member 1. Upon this shaft are two arcuate contact members 7 and8, which are insulated from the strap by means of insulating washers 9.They are also insulated from a centrally extending plate 10 by means ofinsulated washers 11. Arms 12 and 13 are secured upon but insulated fromthe cup 1. These arms are provided with screws as represented at 14which extend into the annular contact portions 7 and 8. Conductorsgenerally represented at 15 may be secured to the screws 14 in contactwith the annular contact plates 7 and 8, respectively, as formingpositive andnegative terminals for the battery connection. The arms 12and 13 are connected with terminals ofthe electro-magnet in base 1, sothat the current which is supplied through the conductors 15 will bedivided through the arms 12 and 13, a part of the current finding a paththrough the coil tube and the other part of the current finding a paththrough the electric lamp, which connections will be presentlydescribed.

The plate 10 which is mounted upon the; shaft 6 is free to rotate uponthis shaft. This plate extends into a socket 16, and is secured thereinin any desired manner.

Within the socket is an insulated bushing 110 17, into which extendspring contact members, which comprise sleeves 18 within which areplungers'lS) that are pressed outwardly by springs 20. The plungers 19will bear. against the annular contacts 7 and 8, while the upperportions of the casings 18 will press against the terminals formed in alamp base 21. The terminals in the lamp base 21 are suitably connectedwith the filament of the lamp, such that the current may pass throughthe filament and produce the glow.

The socket may be provided with a reflector 22 of any desired shape.

The lamp base 21 is secured in the socket 16 by means of abayonet-joint. That is to say, there are vertical slots 23, in whichextend projections 24:, and the slots near their lower portion areprovided with right angular extensions, which is the usual .bayonet slotextension. When these projections 24 are turned so as to enter the rightangular portions of the slots 23, the lamp is held against falling out.

In pushing the lamp into the position shown in Fig. 2, the casings 18 ofthe spring contact members are pushed downwardly against the action ofthe springs '20. The reaction of the springs tend to hold the lamp basesecurely in its position in the slots 23, and the reaction of the springalso tends to push the plungers 19 into good contact with the contactsegments 7 and 8.

The plate 10, as will be apparent from an inspection of Fig. 3, isrounded off, as indicated at 10*, but is provided with a sharp corner,as indicated at 10, and this corner will strike against the strap 11before the socket 16 shall have been moved back far enough to form ashort circuit between the screws 14 carried by the arms 13 and 12.Turning the socket in. the other direction has no tendency to shortcircuit. Therefore the socket may be turned to occupy substantially aright angle position.

When the lampbase 20 and the lamp carried thereby are removed from thesocket 16, the spring pressed contacts may be dropped out of the bushing17 when the device is turned upside down. ltttherefore is possible torenew these'spring Contact members with ease, in the event that thespring becomes broken or too weak'to efliciently function.

Obviously, the details herein described may be changed without departingfrom the spirit of the invention, and I desire the phraseology used inthis specification to be limited only by the statements of the claims.

Having thus described my invention, what Iclaim is: v

1. A handy lamp comprising a base member, a lamp socket member, meansfor pivotally mounting the socket member upon the base, arcuate contactpieces having peripheral contact portions carried by one of saidmembers, means for insulating the said arcuate contact pieces from themember which carries themand from the ivotal mounting of the lampsocket, the ra ius of curvature of said contact pieces bein concentricwith the pivotal axis of the soc et member, and contact pieces carriedby the other of said members which slidably engage with the peripheralcontact portions of the arcuate contact pieces, whereby the lamp socketmay be moved.

2. A handy lamp comprising a base, a lamp socket, means for pivotallymounting the socket upon the base, arcuate contact pieces havingperipheral contact portions mounted upon said base, means for insulatingthe said arcuate contact pieces from each other from the base and fromthe pivotal mounting of the lamp socket, the axis of said arcuatecontact devices coinciding with the axis of the pivotal connection ofthe socket, contact pieces carried by the lamp socket and bearing uponthe peripheral contact portions of the arcuate contact pieces.

3. A handy lamp comprising a base, a lamp socket, a plate secured insaid socket, a pair of arcuate contact pieces, insulatin materialseparating the plate and the sai contact (pieces, the said plate beingpivotally mounte upon the base, contact pieces carried by the lampsocket and bearing upon the arcuate contact pieces.

4. A handy lamp comprising a base, a bracket carried by the base,arcuate contact members mounted upon said bracket, a plate pivotallymounted upon the bracket, and insulated from the contact members, a lampsocket carriedby the said plate, and contact members carried by the lampsocket and engaging with the aforesaid arcuate contact members.

5. A handy lamp comprising a base, a pair of arcuate contact memberssuppo from the said base and insulated therefrom, a plate pivotallymounted upon the said base, the axis of the plate comcidin with the axesof the arcuate contact mem ers, a lamp socket'havin'g an insulated headtherein, the said plate being secured in the said insulated head,openings through the insulated head, contact pieces extending throughsaid openings and bearing upon the arcuate pieces, said contact piecesbeing adapted to engage a lamp carried by the socket.

6. A handy lamp comprising a base mem her, a lamp socket member providedwith an insulated head, a plate secured in said head, said plate beingpivotally mounted upon the base, arcuate contact members insulated fromeach other and from the said plate, the axes of the said arcuate contactmembers coinciding with the pivotal axis of the plate, spring pressedcontact members extending through the head. of the lamp socket, saidcontact pieces engaging with the the socket member.

arcuate contact members and also. being head, spring pressed telescopingcontact 15 adapted to engage with a lamp carried by pleces extendingthrough the opening in said head and bearing upon the arcuate contact 7.A handy lamp comprising a, base, a pieces, said spring pressed contactpieces en- 1 bracket associated with the base, arcuate gaging with thearcuate contact pleces and contact members mounted upon the bracket,also being adapted to engage with the lamp 20 a plate pivotally mountedupon the bracket, carried by the socke the pivotal axis of the platecoinciding with In testimony whereof, I hereunto aflix my the axes ofthe arcuate contact members, signature in the presence of two witnesses.

- saidplateextending between said contact members and insulatedtherefrom, a lamp RALPH ROOT socket mounted upon the said base an in-Witnesses: sulated head in the lamp socket with which A. J. HUDSON,

the said plate engages, openings in said L. I. Pom

